
Release Notes for StellarisWare Revision 6852 (January 11, 2011)
5.9 Bug Fixes in EK-LM3S6965 Firmware Package
5.9.1 SDCard Stop Transmission Command Fix (Reference 12973)
On very rare occasions, disk_read calls in the FatFS module would fail unexpectedly when read-
ing from an SDCard. This was traced to a timing and data-dependent bug in the SDCard driver’s
handling of the CMD12 (stop transmission) command. In some cases, this command would misin-
terpret a data byte as a response code and return early, before the card was idle and this, in turn,
could cause a following sector read command to fail. The function handling CMD12 has now been
reworked to prevent this from occurring.
5.9.2 Bad links in enet_io web site fixed (Reference 12972)
Some of the hyperlinks displayed by the web site served from the enet_io example application were
incorrect in previous releases. These have been updated and now target the correct pages.
5.10 Bug Fixes in EK-LM3S8962 Firmware Package
5.10.1 SDCard Stop Transmission Command Fix (Reference 12973)
On very rare occasions, disk_read calls in the FatFS module would fail unexpectedly when read-
ing from an SDCard. This was traced to a timing and data-dependent bug in the SDCard driver’s
handling of the CMD12 (stop transmission) command. In some cases, this command would misin-
terpret a data byte as a response code and return early, before the card was idle and this, in turn,
could cause a following sector read command to fail. The function handling CMD12 has now been
reworked to prevent this from occurring.
5.10.2 Bad links in enet_io web site fixed (Reference 12972)
Some of the hyperlinks displayed by the web site served from the enet_io example application were
incorrect in previous releases. These have been updated and now target the correct pages.
5.11 Bug Fixes in RDK-BDC Firmware Package
5.11.1 Performance improvements in the CAN interface (Reference 12904)
Performance improvements were made in the handling of the CAN interface, greatly reducing the
latency between receiving a CAN message and responding with an ACK. The reduced latency
allows the message rate to increase.
52 September 16, 2011
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